Y’all. My apologies in advance. What’s hilarious is that, I almost typed in ‘Nude,’ as in ‘Justin Bieber Is Completely Nude…’ and then I realized, no. ‘Nude’ is a word reserved for a Miranda Kerr shoot, or even that new Lady Gaga performance art video. He’s not nude. He’s not even naked. He’s nekkid. Buck, booty nekkid in these newly leaked to TMZ, NSFW photos. I hate to do this to my favorite people on a Monday morning, but my job is to deliver this kind of information to you and– although it’s a tough job, and it’s 6:50 AM, and I’m super-prego and haven’t eaten yet– somebody’s gotta do it. Click inside to see Justin Bieber as you’ve probably never wanted to see him before. Nekkid. And with his Grandma.

Justin Bieber is wise enough to know when a gift needs givin’ … but he didn’t have a box — so he covered his junk with a guitar and jammed out a naked serenade for one lucky lady fan — HIS GRANDMA!

TMZ has obtained photos of a completely nude Biebs strumming away on his big wooden instrument … at his grandmother’s home in Toronto during Canadian Thanksgiving back in October 2012.

And why, you ask, did Bieber go ass naked for g-ma?

Our sources tell us JB had been staying at his granny”s house during the holiday … and slept in a little too late on Thanksgiving morning.

Bieber finally woke up after hearing family and friends stirring around the house — so he thought he’d prank ‘em … by grabbing his guitar and playing a naked set a la Jenny from “Forrest Gump” (‘memba that?).

We’re told birthday-suited Bieber went right up to his grandma and started belting out some impromptu lyrics … like, “I Loooove you grandmaaaa … how are youuuu … helloooo grandma.”

We’re told G thought it was pretty funny — and everyone in the home was cracking up — but granny begged the pop star to get back in his room to put some damn clothes on, stat.

Canadian Thanksgiving — they go balls out up there.

Have mercy, there is so much WRONG with these pictures!!! Especially that second picture. My eyes just keep going from his ass, to Grandma’s face, to the face of Jesus Christ on his leg… that ish feels alllll kinds of wrong.

I am seriously trying to figure out what would possess someone to do this… in front of their grandma, lmao! I mean, I know there are certain people who can pull off pranks like this, but I’m just not apart of that world. It’s all very strange… and very MTV‘s Jackass.

Again, if this is not how you planned to start your morning, my apologies. I just had to share… and now I feel a little bad. Because, like the Hulk Hogan sex tape, there’s just some ish you can’t un-see.

Does he have a single strand of hair below his, well I was gonna say face, but I’ll say forehead? Actually, I don’t want that answered cause it would require removing the guitar to give a factual answer.

This feels inappropriate. Maybe it’s because he’s still going through puberty (bless his stunted growth heart), but this has a “nekkid child” feel about it and I want no parts of it. Shannon, this is NOT how I wanted to start my Monday. And I don’t care if you are pregnant, I’m officially mad at you.

Not a fan of his, but I actually think this is kind of funny. I have guy friends that get naked for laughs all the time. I can deffo see one of them showing up at Thanksgiving dinner sans apparel. Or streaking down the street even if it’s snowing (that ladies and gents IS a Canadian thing, lol).

Haha. Aww, cut him some slack! This is actually funny. I think it’s kinda cool he has a relationship with his family where they all think it’s funny. Though I do wonder who leaked the photos, it’s been a while since then, so a friend of the family member must have found them.